Resistance to mechanical and chemical stresses often play an important role in sewage pipes and shafts. Surface protection must be able to withstand high and low pH values, as well as abrasive wear in order ensure a long service life.
For this purpose, KÖSTER Sewer and Shaft Mortar was developed. After a thorough surface preparation (e.g. by high-pressure water) has led to a stable substrate and efflorescence has been removed, KÖSTER Polysil TG 500 can be applied as a primer.
Afterwards, KÖSTER Sewer and Shaft Mortar is applied in a layer thickness of 4-30 mm. KÖSTER Sewer and Shaft Mortar is a fiber reinforced, water tight, fast curing and fast setting restoration mortar that develops a high compressive strength, as well as an excellent chemical resistance. Due to its consistency and curing properties, it can be applied below the waterline even under flowing water.
Always adhere to the specifications in the respective Technical Guidelines.